By Michelle Roberts Digital health editor Gut problems including constipation, difficulty swallowing and an irritable bowel may be an early warning sign of Parkinson’s disease in some people, a new study suggests. The findings in the journal Gut add more evidence to the idea that brain and bowel health are intimately linked. Understanding why gut issues happen might allow earlier treatment of Parkinson’s, say the researchers. Parkinson’s is progressive, meaning the brain disorder gets worse over time. What is Parkinson’s? People with Parkinson’s do not have enough of the chemical dopamine in their brain because some of the nerve cells that make it are damaged. This causes symptoms including involuntary tremor or shaking, slow, shuffling movements and stiff muscles. Although there is currently no cure, treatments are available to help reduce the main symptoms and maintain quality of life for as long as possible. Spotting the disease even sooner – ...
STRASBOURG, France–(BUSINESS WIRE)– BrainTale, a medtech deciphering white matter to enable better brain care, spin-off of the Paris Region Greater Hospitals, presented preliminary results during the European Academy of Neurology (Budapest, July 1 – 4, 2023) and the World Parkinson congress (Barcelona, July 4 – 7, 2023) demonstrating the interest of its digital biomarker platform for the early and differential diagnosis of Parkinson’s disease. Vincent Perlbarg, co-founder, scientific director and president of BrainTale, has presented the results supporting the interest of BrainTale’s digital biomarker platform for the care of patients suffering from the disease and the development of new therapies. Long underestimated in neuroscience, white matter, which represents 60% to 80% of the human brain, plays a key role in its proper functioning, development, and aging, whether normal or pathological. Accordingly, since its creation in 2018, BrainTale has been developing non-invasive, accessible, effective and clinically validated measurement and prediction tools ...
Bayer AG and its subsidiary, BlueRock Therapeutics LP, have announced positive topline results from an early-stage study of an experimental Parkinson’s disease stem cell therapy. In the phase 1 study of bemdaneprocel, the treatment was shown to be well-tolerated in all 12 patients involved in the study, and transplanted cells grew as intended in the patients’ brains at one-year post-transplant. The companies said that, based on these positive results, planning is already underway for a phase 2 study that is expected to begin enrolling patients in the first half of 2024. There is no cure for Parkinson’s disease, a progressive and chronic neurological disorder that affects an estimated ten million people worldwide. The disease is caused by nerve cell damage in the brain, which leads to decreased levels of dopamine. The loss of these dopaminergic neurons results in a progressive decline of motor function and symptoms such as tremors, muscle ...
By Heather McKenzie https://www.biospace.com/ Bayer logo on a building under blue sky/Getty Images, Kena Betancur/VIEWpress/Corbis Bayer subsidiary BlueRock Therapeutics has taken another next step in its bid to bring a potentially curative therapy to Parkinson’s disease patients. Wednesday, the companies reported that bemdaneprocel, a stem cell therapy, was well tolerated with no major side effects in a Phase I study. Topline data from the trial of 12 patients also showed feasibility of transplantation and evidence that the cells survived and engrafted in the brain after one year, satisfying the study’s secondary endpoints. Full data will be presented in August at the 2023 International Congress on Parkinson’s Disease and Movement Disorders in Copenhagen. The therapy, also known as BRT-DA01, is the first to show positive results in a Phase I study for Parkinson’s, according to Bayer. Bemdaneprocel consists of dopamine-producing neurons derived from pluripotent stem cells. In Parkinson’s disease, patients lose ...
Nicole DeFeudis Editor Biogen is calling it quits on a late-stage Parkinson’s trial as part of an ongoing R&D reorganization. The Cambridge, MA-based biotech announced Monday morning that it’s discontinuing a Phase III program evaluating BIIB122 as a treatment for patients with Parkinson’s disease related to LRRK2 mutations with partner Denali Therapeutics. The study, dubbed LIGHTHOUSE, kicked off in September; it was slated for completion in 2031. Biogen said the decision was made in consideration of the study’s “complexity including the long timeline.” “These modifications are not based on any safety or efficacy data from studies of BIIB122,” the company said in a statement. “Denali and Biogen have a strategic collaboration to jointly develop and commercialize small molecule inhibitors of LRRK2 and remain committed to advancing the development of BIIB122.” Back in 2020, Biogen shelled out more than $1 billion upfront — including $560 million in cash and $465 million ...
F. Perry Wilson, MD, MSCE This transcript has been edited for clarity. Welcome to Impact Factor, your weekly dose of commentary on a new medical study. I’m Dr F. Perry Wilson of the Yale School of Medicine. The thing to realize about this story is that even if it were just a problem for the military, it would be a huge problem. But although this is a story about the military, in the end, it may affect a much larger segment of the population. It’s a story about a military base, Camp Lejeune, and the toxins that leached into the water system there, poisoning the base residents for decades. It is about the most rapidly growing neurologic disease in the country. And it is very much about a simple molecule, trichloroethylene (TCE). TCE was first synthesized in 1864 and quickly became a sensation as an early anesthetic. Less toxic to ...
By Dr. Priyom Bose, Ph.D.May 11 2023Reviewed by Benedette Cuffari, M.Sc. Among all neurological diseases, the incidence of Parkinson’s disease (PD) has increased significantly. PD is typically diagnosed on the basis of motor nerve symptoms, such as resting tremors, rigidity, and bradykinesia. However, the detection of non-motor symptoms, such as constipation, apathy, loss of smell, and sleep disorders, could help in the early diagnosis of PD by several years to decades. In a recent ACS Central Science study, scientists from the University of New South Wales (UNSW) discuss a machine learning (ML)-based tool that can detect PD years before the first onset of symptoms. Study: Interpretable Machine Learning on Metabolomics Data Reveals Biomarkers for Parkinson’s Disease. Image Credit: SomYuZu / Shutterstock.com Background At present, the overall diagnostic accuracy for PD based on motor symptoms is 80%. This accuracy could be increased if PD was diagnosed based on biomarkers rather than primarily depending on physical symptoms. Several ...
There are currently 8 million patients with Parkinson’s disease in the world. In 2021, Professor Per Saris’s group published results demonstrating that bacteria of the Desulfovibrio bacterial genus correlate with Parkinson’s disease, and that their higher number also correlates with the severity of the symptoms of the disease. Replicating the same study, Chinese researchers came to the same conclusion. “Our findings are significant, as the cause of Parkinson’s disease has gone unknown despite attempts to identify it throughout the last two centuries. The findings indicate that specific strains of Desulfovibrio bacteria are likely to cause Parkinson’s disease. The disease is primarily caused by environmental factors, that is, environmental exposure to the Desulfovibrio bacterial strains that cause Parkinson’s disease. Only a small share, or roughly 10%, of Parkinson’s disease is caused by individual genes,” says Professor Per Saris from the University of Helsinki. The goal of Professor Saris’s research group ...
When Marina Noordegraaf was diagnosed with Parkinson’s disease at age 49, she noticed when it came to treatment decisions, she sometimes felt powerless. She observed that she herself played an active role in communicating her hopes and wishes to her healthcare professionals, which were not automatically taken into account. She took back control by taking her own hope seriously, prescribing her own recipe of “hopamine,” a self-invented word representing the uniquely personal set of hopes, desires, experiences, and skills of each individual with Parkinson’s disease, which is caused by a dopamine deficit. Marina Noordegraaf, MSc, together with a team of healthcare professionals at Radboud University Medical Centre in Nijmegen, the Netherlands, led by Professor Bastiaan R. Bloem, MD, PhD, recognized the importance of conveying the message of hopamine to the broader Parkinson’s world. In a commentary published in the Journal of Parkinson’s Disease, the authors propose that ...
A technique that identifies the build-up of abnormal protein deposits linked to Parkinson’s disease could aid in early detection and play a key role in the disease’s clinical diagnosis and characterization, according to research published in The Lancet Neurology journal. Findings from the study confirm that the technique—known as α-synuclein seed amplification assay (αSyn-SAA)—can accurately detect people with the neurodegenerative disease and suggest it can identify at-risk individuals and those with early, non-motor symptoms prior to diagnosis. The presence of misfolded α-synuclein protein aggregates in the brain is the pathological hallmark of Parkinson’s disease. Co-lead author Professor Andrew Siderowf, of the University of Pennsylvania Perelman School of Medicine (U.S.) and Parkinson Progression Marker Initiative (PPMI) investigator, says, “Recognizing heterogeneity in underlying pathology among patients with Parkinson’s disease has been a major challenge. Identifying an effective biomarker for Parkinson’s disease pathology could have profound implications for the way we treat the condition, potentially ...
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